ASCII(1)ASCII(1)
NAME
ascii, unicode - interpret ASCII, Unicode characters
SYNOPSIS
ascii [ -8cnt ] [ -dox | -b n ] [ text ]
unicode hexmin-hexmax
unicode [ -t ] hex [ ... ]
unicode [ -n ] characters
look hex /lib/unicode
DESCRIPTION
Ascii prints the ASCII values corresponding to characters
and vice versa; under the -8 option, the ISO Latin-1 exten-
sions (codes 0200-0377) are included. The values are inter-
preted in a settable numeric base; -o specifies octal, -d
decimal, -x hexadecimal (the default), and -bn base n.
With no arguments, ascii prints a table of the character set
in the specified base. Characters of text are converted to
their ASCII values, one per line. If, however, the first
text argument is a valid number in the specified base, con-
version goes the opposite way. Control characters are
printed as two- or three-character mnemonics. Other options
are:
-n Force numeric output.
-c Force character output.
-t Convert from numbers to running text; do not interpret
control characters or insert newlines.
Unicode is similar; it converts between UTF and character
values from the Unicode Standard (see utf(6)). If given a
range of hexadecimal numbers, unicode prints a table of the
specified Unicode characters - their values and UTF repre-
sentations. Otherwise it translates from UTF to numeric
value or vice versa, depending on the appearance of the sup-
plied text; the -n option forces numeric output to avoid
ambiguity with numeric characters. If converting to UTF ,
the characters are printed one per line unless the -t flag
is set, in which case the output is a single string contain-
ing only the specified characters. Unlike ascii, unicode
treats no characters specially.
The output of ascii and unicode may be unhelpful if the
ASCII(1)ASCII(1)
characters printed are not available in the current font.
The file /lib/unicode contains a table of characters and
descriptions, sorted in hexadecimal order, suitable for
look(1) on the lower case hex values of characters.
EXAMPLES
ascii -d
Print the ASCII table base 10.
unicode p
Print the hex value of `p'.
unicode 2200-22f1
Print a table of miscellaneous mathematical symbols.
look 00039 /lib/unicode
See the start of the Greek alphabet's encoding in the
Unicode Standard.
FILES
/lib/unicode table of characters and descriptions.
SOURCE
/sys/src/cmd/ascii.c
/sys/src/cmd/unicode.c
SEE ALSO
look(1), tcs(1), utf(6), font(6)